ADHD, Lead, and PCBs: Appropriate comparison studies

Abstract

In their article "Lead and PCBs as Risk Factors for Attention Deficit/Hyperactivity Disorder" (ADHD), Eubig et al. (2010) offered a large compilation of human and animal research supporting a relationship between these environmental contaminants and ADHD occurrence. Key to understanding such a relationship, however, is research quality, not quantity.